<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <form action="http://localhost:3000/" method="POST">
    <label for="username">用户名</label>
    <input type="text" id="username" name="username">
    <label for="password">密码</label>
    <input type="password" id="password" name="password">
    <input type="submit" value="提交">
  </form>
</body>

</html>